CN1979937A - Power supply apparatus and method for line conection type fuel cell system - Google Patents

Power supply apparatus and method for line conection type fuel cell system Download PDF

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Publication number
CN1979937A
CN1979937A CNA2006101647264A CN200610164726A CN1979937A CN 1979937 A CN1979937 A CN 1979937A CN A2006101647264 A CNA2006101647264 A CN A2006101647264A CN 200610164726 A CN200610164726 A CN 200610164726A CN 1979937 A CN1979937 A CN 1979937A
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China
Prior art keywords
power
pcs
bop
line
controlling
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CNA2006101647264A
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Chinese (zh)
Inventor
具本琯
金泰元
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LG Electronics Inc
LG Corp
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LG Electronics Inc
LG Chemical Co Ltd
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Publication of CN1979937A publication Critical patent/CN1979937A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J11/00Circuit arrangements for providing service supply to auxiliaries of stations in which electric power is generated, distributed or converted
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04858Electric variables
    • H01M8/04925Power, energy, capacity or load
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381Dispersed generators
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/30The power source being a fuel cell
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S429/00Chemistry: electrical current producing apparatus, product, and process
    • Y10S429/90Fuel cell including means for power conditioning, e.g. Conversion to ac

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Fuel Cell (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

A power supply apparatus for a line connection type fuel cell system includes a power converter system (PCS) control power supply which generates PCS control power from line power, a balance of plant (BOP) power supply which generates BOP power from line power, a regulator which generates PCS control power from the BOP power, a first switching unit switched by a control signal, which directs the line power to one of the PCS control power supply and the BOP power supply, a second switching unit switched by a control signal, which selects an output of one of the PCS control power supply and the regulator to provide PCS control power, and a controller which controls switching of the first and second switching units in response to a starting command.

Description

The power supplies and the method that are used for the fuel cell system of circuit connection type
Technical field
The present invention relates to fuel cell system, and more specifically, the power supplies and the method that relate to the fuel cell system that is used for the circuit connection type, it is by stably having improved the operational efficiency of fuel cell system when the initial start fuel cell system to power converter system (PCS) control board supply power.
Background technology
Usually, fuel cell is the equipment that generates electric energy from fuel.
In the example of fuel cell, anode and negative electrode are installed in the both sides of polymer dielectric film.The electrochemical oxidation of the hydrogen of locating to act as a fuel at anode (being also referred to as oxidizing electrode), and locate to take place electrochemical reduction as the oxygen of oxidant at negative electrode (being also referred to as reducing electrode).
Fuel cell generates electronics by electrochemical oxidation and reduction, and generates electric energy by movement of electrons.
Exemplary fuel cell comprises phosphoric acid fuel cell, alkaline fuel cell, Proton Exchange Membrane Fuel Cells, molten carbonate fuel cell, Solid Oxide Fuel Cell and direct methanol fuel cell.
The example use of fuel cell comprises commercial fuel cell, housekeeping fuel cell, is used for the vehicle fuel battery of electric motor car and is used for portable terminal or the small fuel cell of notebook computer.
Housekeeping fuel cell has been modified to effectively move household electrical appliance or the lighting apparatus in the family.Commercial fuel cell has been modified to effectively move lighting apparatus, motor or the machine in shopping center or the factory.
Fuel cell system can be connected to such as the such line power supply system of electric power facility.If by the underpower of fuel cell system, then from the power of line power supply system to the under-supply amount of fuel cell system to the load supply.If too much to the power of load supply by fuel cell system, then fuel cell system is supplied to the line power supply system with extra power.
Fig. 1 is the block diagram that shows the conventional power supply equipment of the fuel cell system that is used for the circuit connection type.
With reference to figure 1, traditional power supplies comprises fuel cell 1, DC/DC converting unit 2, converter 3, line power feeding unit 4, ancillary equipment (balance of plant, BOP) power feeding unit 5 and power converter system (PCS) power controlling feeding unit 6.
Rectifier (not shown) in the converter 3 will convert the DC line power to from the AC line power of line power feeding unit 4 outputs.When initial starting fluid battery system, BOP power feeding unit 5 receives the DC line powers, converts the DC line power to predetermined voltage level BOP power, and BOP power is supplied to the BOP parts of fuel cell system.
Exemplary BOP parts comprise: air supply device (as but be not limited to for example compressor, pump etc. and so on), it is to fuel cell 1 supply oxygen; And fuel supply device, it is to fuel cell 1 fuel supplying.
Fuel cell 1 generates DC power by making to react from the oxygen of air supply device (not shown) with from the fuel of fuel supply device (not shown).
The voltage of the DC power that DC/DC converting unit 2 raising fuel cells 1 are generated, and the DC power of output raising.
Converter 3 will become AC power from the DC power transfer of DC/DC converting unit 2 outputs, and AC power is supplied at least one load.
Triac Tr, it disconnects when the fuel cell system initial start and connects after fuel cell start-up, and charging resistor CR, it is parallel-connected to the charging of triac Tr with control DC chain voltage, is connected between the output and line power line of converter 3.
During initial start, PCS power controlling feeding unit 6 receives the DC line power, converts the DC line power to predetermined voltage level PCS power controlling, and is supplied to PCS control board (not shown) as operate power the PCS power controlling.
Explain the operation of the conventional power supply equipment of the fuel cell system that is used for the circuit connection type now.
The starting command of controller (not shown) fuel cell system disconnects triac Tr.Then, the line power of exporting by line power feeding unit 4 passes charging resistor CR, and is supplied to the rectifier in the converter 3.Rectifier converts the AC line power to the DC line power, and the DC line power is supplied to DC chain capacitor C, with charging DC chain capacitor C.
After DC chain capacitor C was charged to a certain degree, BOP power feeding unit 5 received the DC line power, converts the DC line power to predetermined voltage level BOP power, and BOP power is supplied to the BOP parts of fuel cell system.
The PCS power controlling feeding unit 6 same DC line powers that receive convert the DC line power to predetermined voltage level PCS power controlling, and the PCS power controlling are supplied to the PCS control board.
Therefore, BOP parts and PCS control board are provided to power, with generating in fuel cell 1.
That is fuel cell 1 receives fuel and air from BOP parts (not shown), and described fuel and air react together to generate DC power.
Thereafter, DC/DC converting unit 2 improves the voltage of the DC power that fuel cells 1 are generated, and the DC power that improves is outputed to converter 3.Converter 3 will become AC power by the DC power transfer of DC/DC converting unit 2 outputs, and AC power is supplied to load.
The controller (not shown) monitors whether DC power generates by fuel cell 1.If controller is sensed DC power, then controller makes triac Tr conducting, thereby AC power is transferred to load from the triac Tr of converter 3 by conducting.
Yet, traditional power supplies when the initial start fuel cell system, the DC chain capacitor C that must charge and have big electric capacity.Therefore, big electric current just flows in initial start soon, thereby makes the charging resistor short circuit.
In addition, when DC chain capacitor C in when charging, power is supplied to the PCS control board, this has caused the misoperation of PCS control board.
Summary of the invention
Therefore, feature of the present invention is power supplies and the method that is used for the fuel cell system of circuit connection type, and it can be supplied operate power and power controlling to fuel cell system and not have charging resistor.
Another feature of the present invention is power supplies and the method that is used for the fuel cell system of circuit connection type, it can be by when the initial start fuel cell system, before BOP parts supply power, supplying stable power, prevent that the PCS control board from being operated mistakenly in initial start to the PCS control board.
In order to realize these features at least, the power supplies of the fuel cell system that is used for the circuit connection type is provided, it comprises: the supply of power converter system (PCS) power controlling, it generates the PCS power controlling from line power; The supply of ancillary equipment (BOP) power, it generates BOP power from line power; Adjuster, it generates the PCS power controlling from BOP power; First switch unit, it switches by control signal, and line power is directed in supplying one of PCS power controlling supply and BOP power; Second switch unit, it switches by control signal, and the output of one of selecting in PCS power controlling supply and the adjuster is to provide PCS power controlling; And controller, its response starting command is controlled the switching of first and second switch units.
When generating starting command, controller can disconnect first switch unit.When generating starting command, controller can be exported control signal, and it controls second switch unit, is connected to the PCS control board with the output with the supply of PCS power controlling.
When generating DC power in fuel cell, controller can make the first switch unit conducting.When generating DC power in fuel cell, controller can be exported control signal, and it controls second switch unit, is connected to the PCS control board with the output with adjuster.
The supply of PCS power controlling can convert the DC line power to the PCS power controlling with predetermined dc voltage level.The supply of BOP power can convert the DC line power to the BOP power with predetermined dc voltage level.
The power supplies of the fuel cell system that is used for the circuit connection type also is provided, and it comprises: charhing unit, and it converts the AC line power to the DC line power; The supply of PCS power controlling, it generates the PCS power controlling from the DC line power; The supply of BOP power, it generates BOP power from line power; Switch unit, it switches by control signal, and the AC line power is guided one of in PCS power controlling supply and the supply of BOP power; And controller, the switching of control signal with the control switch unit exported in its generation based on the PCS power controlling.
When generating starting command, controller can disconnect switch unit, and the AC line power is directed to charhing unit.When generating the PCS power controlling by the supply of PCS power controlling, controller can make the switch unit conducting, towards BOP power feeding unit guiding AC line power.
PCS power controlling feeding unit can convert the DC line power to the PCS power controlling with predetermined dc voltage level.The supply of BOP power can convert the DC line power to the BOP power with predetermined dc voltage level.
The power Supply Method of the fuel cell system that is used for the circuit connection type also is provided, and it comprises: when generating starting command, generate the PCS power controlling from line power; Generate BOP power from line power; Supply BOP power to generate DC power to fuel cell; And generate BOP power and PCS power controlling from DC power that fuel cell generated.
The power Supply Method can also comprise that the voltage level of the DC power that fuel cell is generated becomes predetermined voltage level, wherein generates BOP power and PCS power controlling based on described predetermined voltage level.The power Supply Method can also comprise regulates the BOP power that generates, and wherein the BOP power from described adjusting generates the PCS power controlling.
Generating the PCS power controlling from line power can comprise and convert line power to predetermined voltage level DC power.Generating BOP power from line power can comprise and convert line power to predetermined voltage level DC power.
The power Supply Method of the fuel cell system that is used for the circuit connection type also is provided, and it comprises: generate the PCS power controlling from line power; Generate BOP power from line power; Supply BOP power to generate DC power to fuel cell; And generate BOP power and PCS power controlling from DC power that fuel cell generated.
The power Supply Method can comprise that the voltage level of the DC power that fuel cell is generated becomes predetermined voltage level, wherein generates BOP power and PCS power controlling based on described predetermined voltage level.The power Supply Method can also comprise regulates the BOP power that generates, and wherein the BOP power from described adjusting generates the PCS power controlling.
The power Supply Method can also comprise and convert line power to the DC line power, wherein generates the PCS power controlling from line power and comprises and convert the DC line power to predetermined dc voltage level PCS power controlling.Generating BOP power from line power can comprise and convert line power to predetermined dc voltage level BOP power.
When in conjunction with the accompanying drawings, describing in detail below of the present invention, aforementioned and other targets, feature, aspect and advantage of the present invention will become more apparent.
Description of drawings
Accompanying drawing, the part that it is included to provide further understanding of the present invention and is merged in and constitutes this specification has shown embodiments of the invention, and is used for explaining principle of the present invention together with describing.
In the accompanying drawings:
Fig. 1 is the block diagram that shows the conventional power supply equipment of the fuel cell system that is used for the circuit connection type;
Fig. 2 is the block diagram of demonstration according to the power supplies of the fuel cell system that is used for the circuit connection type of the first embodiment of the present invention;
Fig. 3 is the flow chart that shows the power Supply Method of the fuel cell system that is used for the circuit connection type according to an embodiment of the invention; And
Fig. 4 is the block diagram that shows the power supplies of the fuel cell system that is used for the circuit connection type according to a second embodiment of the present invention.
Embodiment
Will at length carry out reference to the preferred embodiments of the present invention now, its example shows in the accompanying drawings.
With reference now to accompanying drawing, describes the power supplies and the method for the fuel cell system that is used for the circuit connection type that can improve the fuel cell system reliability in detail.
Fig. 2 is the block diagram of demonstration according to the power supplies of the fuel cell system that is used for the circuit connection type of the first embodiment of the present invention.
As shown in Figure 2, power supplies comprises fuel cell 10, DC/DC converting unit 20, converter 30, line power feeding unit 40, triac Tr, switch unit 90, controller 80, BOP power feeding unit 50 and adjuster 60.
Fuel cell 10 comprises by what anode and negative electrode were formed and piles up (not shown), and it is by the which generate electricity by electrochemical reaction of hydrogen and oxygen, and generates DC power the (not shown) from described piling up.
The voltage of the DC power that DC/DC converting unit 20 change fuel cells 10 are exported (that is improving or reduce voltage).
The DC power transfer that converter 30 is exported DC/DC converting unit 20 becomes AC power, and AC power is supplied at least one load.
Converter 30 comprises rectifier, and it will convert the DC line power to from the AC line power of line power feeding unit 40 when initial starting fluid battery system, and by DC chain capacitor C to BOP power feeding unit 50 supply DC line powers.
Line power feeding unit 40 generates the AC line power, and the AC line power is supplied to fuel cell system and each load.
BOP power feeding unit 50 receives the DC line power by triac Tr when the initial start fuel cell system, convert the DC line power to BOP power, and BOP power is supplied at least one BOP parts of fuel cell system with predetermined dc voltage.When fuel cell 10 output DC power, the DC power transfer that BOP power feeding unit 50 is exported fuel cell becomes BOP power, and BOP power is supplied to the BOP parts.
Adjuster 60 changes the voltage of the BOP power that BOP power feeding unit 50 is exported (that is improve or reduce) and arrives predetermined level with generation PCS power controlling, and the PCS power controlling is supplied to the PCS control board.
PCS power controlling feeding unit 70 converts the AC line power to predetermined dc voltage level PCS power controlling, and the PCS power controlling is supplied to the PCS control board.
Switch unit 90 switches by control signal, so that the output of adjuster 60 or the output of PCS power controlling feeding unit 70 are connected to the PCS control board.
That is switch unit 90 switches by control signal, with or select perhaps to select from the PCS power controlling of PCS power controlling feeding unit 70 outputs from the PCS power controlling of adjuster 60 outputs.
Controller 80 is by the power supply of PCS power controlling, and the switching of control triac Tr and switch unit 90.
When generating starting command, controller 80 disconnects triac Tr, and the output control signal is connected to the PCS control board with control switch unit 90 with the output with PCS power controlling feeding unit 70.
In addition, when sensing fuel cell 10 generation DC power, controller 80 makes triac Tr conducting, and the output control signal is connected to the PCS control board with control switch unit 90 with the output with adjuster 60.
With reference now to Fig. 3, operation according to the power supplies of the fuel cell system that is used for the circuit connection type of the first embodiment of the present invention is described.
When generating starting command (SP1), controller 80 disconnects triac Tr, thereby prevents that line power is transferred to converter 30 from AC line power feeding unit 40.
PCS power controlling feeding unit 70 will convert the PCS power controlling with predetermined dc voltage level from the AC line power of line power feeding unit 40 to, and output PCS power controlling.
Here, controller 80 switches described switch unit 90, so that PCS power controlling feeding unit 70 is connected to the PCS control board.Therefore, be used as the operate power supply (SP2) of PCS control board from the PCS power of PCS power controlling feeding unit 70.
Thereafter, controller 80 makes triac Tr conducting, and switches described switch unit 90, is connected to the PCS control board with the output with adjuster 60.
Rectifier in the converter 30 will convert the DC line power to from the AC line power of line power feeding unit 40, and BOP power feeding unit 50 receives the DC line power by DC chain capacitor C, the voltage level of DC line power is changed to predetermined dc voltage level, and the DC power that will have a dc voltage level of change is supplied to BOP parts (SP3) as BOP power.
Fuel cell system is by the BOP power drive, to generate dc voltage (SP4) in fuel cell 10.
DC/DC converting unit 20 changes the voltage of the DC power that fuel cells 10 are generated, and the dc voltage that changes is supplied to converter 30.Converter 30 will become AC power from the DC power transfer of DC/DC converting unit 20, and AC power is supplied to each load.
When the AC power sensed from converter 30, controller 90 is regarded current state as normal condition, and switches described switch unit 90, so that adjuster 60 is connected to the PCS control board.
BOP power feeding unit 50 changes to predetermined voltage level with the voltage of the DC power that DC/DC converting unit 20 is exported, and the DC power that changes is supplied to the BOP parts as BOP power, and BOP power is supplied to adjuster 60 (SP5).
Adjuster 60 becomes to have the PCS power of predetermined dc voltage level with the BOP power transfer, and passes through switch unit 90 to PCS control board supply PCS power.This continue up to receive cease and desist order till (SP6).
Fig. 4 is the block diagram that shows the power supplies of the fuel cell system that is used for the circuit connection type according to a second embodiment of the present invention.
As shown in Figure 4, power supplies comprises: line power feeding unit 40, its supply AC line power; Charhing unit 100, it converts the AC line power to the DC line power with limited electric current; PCS power controlling feeding unit 70, it converts the DC line power to predetermined dc voltage level PCS power controlling, and the PCS power controlling is supplied to the PCS control board; BOP power feeding unit 50, it converts the DC line power to predetermined dc voltage level BOP power, and BOP power is supplied to the BOP parts; Triac Tr, it switches by control signal, will be directed to PCS power controlling feeding unit 70 or BOP power feeding unit 50 from the AC line power of line power feeding unit 40; And controller 200, the switching of triac Tr is controlled in its generation according to the PCS power controlling.
Charhing unit 100 comprises charging resistor PCR, and the electric current of the charging capacitor (not shown) in the PCS power controlling feeding unit 70 is led in its restriction.Charging resistor PCR has than the much smaller resistance of the common charging resistor of tradition.
The operation of the power supplies of the fuel cell system that is used for the circuit connection type is according to a second embodiment of the present invention described now.
When generating starting command, controller 200 disconnects triac Tr (making its not conducting), thereby line power is directed to PCS power controlling feeding unit 70 from line power feeding unit 40 by charhing unit 100.The diode D2 of charhing unit 100 converts the AC line power to the DC line power.
PCS power controlling feeding unit 70 converts the DC line power to predetermined dc voltage level PCS power controlling, and the PCS power controlling is supplied to the PCS control board.
After PCS power controlling feeding unit 70 generated the PCS power controlling, controller 200 was connected triac Tr (making its conducting).
Line power leads to converter 30 then, and the rectifier that is transformed there in the device 30 converts the DC line power to.BOP power feeding unit 50 receives the DC line power by DC chain capacitor C, converts the DC line power to predetermined voltage level BOP power, and BOP power is supplied to BOP parts (not shown).
Fuel cell system is by the BOP power drive, to generate DC power by fuel cell 10.DC/DC converting unit 20 changes the voltage of the DC power that fuel cells 10 are generated, and the DC power that changes is outputed to converter 30.
The DC power transfer that converter 30 is exported DC/DC converting unit 20 becomes AC power, and AC power is supplied to each load.
Further, the DC power transfer that PCS power controlling feeding unit 70 is exported DC/DC converting unit 20 becomes to have the PCS power controlling of predetermined dc voltage level, and the PCS power controlling is supplied to PCS control board (not shown).
So, above-described power supplies and method just can be supplied operate power and power controlling to fuel cell system and do not had charging resistor.
Described power supplies and method can also by supplied stable power to the PCS control board before BOP parts supply power, prevent that the PCS control board from being operated mistakenly in initial start when the initial start fuel cell system.
Because can embody the present invention and not break away from its spirit or substantive characteristics with some forms, so be to be understood that equally, the foregoing description also be can't help the details of any aforementioned description and is limited, except as otherwise noted, but should within its spirit and scope defined in additional claim, explain widely, therefore drop on all changes and modification within the equivalent of the border of claim and boundary or such border and boundary, all plans for the claim of adding included.

Claims (22)

1. power supplies that is used for the fuel cell system of circuit connection type comprises:
The supply of power converter system (PCS) power controlling, it generates the PCS power controlling from line power;
The supply of ancillary equipment (BOP) power, it generates BOP power from line power;
Adjuster, it generates the PCS power controlling from described BOP power;
First switch unit, it switches by control signal, and described line power is directed in supplying one of the supply of described PCS power controlling and described BOP power;
Second switch unit, it switches by control signal, and the output of one of selecting in supply of described PCS power controlling and the described adjuster is to provide PCS power controlling; And
Controller, its response starting command is controlled the switching of described first and second switch units.
2. power supplies as claimed in claim 1, wherein, when generating described starting command, described controller disconnects described first switch unit.
3. power supplies as claimed in claim 1, wherein, when generating described starting command, described controller output control signal, it controls described second switch unit, is connected to the PCS control board with the output with the supply of described PCS power controlling.
4. power supplies as claimed in claim 1, wherein, when generating DC power in fuel cell, described controller makes the described first switch unit conducting.
5. power supplies as claimed in claim 1, wherein, when in described fuel cell, generating DC power, described controller output control signal, it controls described second switch unit, is connected to the PCS control board with the output with described adjuster.
6. power supplies as claimed in claim 1, wherein, the supply of described PCS power controlling converts the DC line power to the PCS power controlling with predetermined dc voltage level.
7. power supplies as claimed in claim 1, wherein, the supply of described BOP power converts the DC line power to the BOP power with predetermined dc voltage level.
8. power supplies that is used for the fuel cell system of circuit connection type, it comprises:
Charhing unit, it converts the AC line power to the DC line power;
The supply of power converter system (PCS) power controlling, it generates the PCS power controlling from described DC line power;
The supply of ancillary equipment (BOP) power, it generates BOP power from line power;
Switch unit, it switches by control signal, and described AC line power is guided one of in supply of described PCS power controlling and the supply of described BOP power; And
Controller, its generation based on described PCS power controlling is exported control signal to control the switching of described switch unit.
9. power supplies as claimed in claim 8, wherein, when generating starting command, described controller disconnects described switch unit, and described AC line power is directed to described charhing unit.
10. power supplies as claimed in claim 8, wherein, when the PCS power controlling generated by described PCS power controlling supply, described controller made described switch unit conducting, guides described AC line power towards described BOP power feeding unit.
11. power supplies as claimed in claim 8, wherein, described PCS power controlling feeding unit converts described DC line power to the PCS power controlling with predetermined dc voltage level.
12. power supplies as claimed in claim 8, wherein, the supply of described BOP power converts the DC line power to the BOP power with predetermined dc voltage level.
13. a power Supply Method that is used for the fuel cell system of circuit connection type, it comprises:
When generating starting command, generate power converter system (PCS) power controlling from line power;
Generate ancillary equipment (BOP) power from described line power;
Supply described BOP power to generate DC power to fuel cell; And
Generate BOP power and PCS power controlling from the described DC power that described fuel cell produced.
14. power Supply Method as claimed in claim 13 comprises that further the voltage level of the described DC power that described fuel cell is generated becomes predetermined voltage level, wherein generates described BOP power and PCS power controlling based on described predetermined voltage level.
15. power Supply Method as claimed in claim 13 further comprises the BOP power of regulating described generation, wherein the BOP power from described adjusting generates described PCS power controlling.
16. power Supply Method as claimed in claim 13 wherein, generates described PCS power controlling from described line power and comprises and convert described line power to predetermined voltage level DC power.
17. power Supply Method as claimed in claim 13 wherein, generates described BOP power from described line power and comprises and convert described line power to predetermined voltage level DC power.
18. a power Supply Method that is used for the fuel cell system of circuit connection type, it comprises:
Generate power converter system (PCS) power controlling from line power;
Generate ancillary equipment (BOP) power from described line power;
Supply described BOP power to generate DC power to fuel cell; And
Generate BOP power and PCS power controlling from the described DC power that described fuel cell generated.
19. power Supply Method as claimed in claim 18 comprises that further the voltage level of the described DC power that described fuel cell is generated becomes predetermined voltage level, wherein generates described BOP power and PCS power controlling based on described predetermined voltage level.
20. power Supply Method as claimed in claim 18 further comprises the BOP power of regulating described generation, wherein the BOP power from described adjusting generates described PCS power controlling.
21. power Supply Method as claimed in claim 18, further comprise converting described line power to the DC line power, wherein generate described PCS power controlling and comprise and convert described DC line power to PCS power controlling with predetermined dc voltage level from described line power.
22. power Supply Method as claimed in claim 18 wherein generates described BOP power from described line power and comprises and convert line power to predetermined dc voltage level BOP power.
CNA2006101647264A 2005-12-06 2006-12-06 Power supply apparatus and method for line conection type fuel cell system Pending CN1979937A (en)

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Application Number Priority Date Filing Date Title
KR1020050118399 2005-12-06
KR1020050118399A KR100768849B1 (en) 2005-12-06 2005-12-06 Power supply apparatus and method for line conection type fuel cell system

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CN1979937A true CN1979937A (en) 2007-06-13

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US (1) US8187761B2 (en)
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ATE517457T1 (en) 2011-08-15
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